HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 757

• Manufacturer Part Number: HD6433044
• Description: (HD64 Series) Hitachi Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

DTCR0A—Data Transfer Control Register 0A
•
Bit
Initial value
Read/Write
Data transfer enable
0 Data transfer is disabled
1 Data transfer is enabled
Data transfer size
Full address mode
0 Byte-size transfer
1 Word-size transfer
Source address increment/decrement (bit 5)
Source address increment/decrement enable (bit 4)
SAID
Bit 5
0
1
(cont)
SAIDE
Bit 4
DTE
R/W
0
1
0
1
7
0
Increment/Decrement Enable
MARA is held fixed
Incremented:
MARA is held fixed
Decremented:
DTSZ
R/W
6
0
SAID
R/W
If DTSZ = 0, MARA is incremented by 1 after each transfer
If DTSZ = 1, MARA is incremented by 2 after each transfer
If DTSZ = 0, MARA is decremented by 1 after each transfer
If DTSZ = 1, MARA is decremented by 2 after each transfer
5
0
SAIDE
750
R/W
4
0
Data transfer interrupt enable
0 Interrupt request by DTE bit is disabled
1 Interrupt request by DTE bit is enabled
DTIE
R/W
3
0
Data transfer select 2A and 1A
Set both bits to 1
DTS2A
H'27
R/W
Data transfer select 0A
0 Normal mode
1 Block transfer mode
2
0
DTS1A
R/W
1
0
DTS0A
R/W
DMAC0
0
0